Improvement in solutions for galvanic batteries



UNITED TE S ATENT ()FFIOE.

CHARLES A. EHRENBERG, OF BROOKLYN, NEW YORK.

(MlROVEMENTIN SOLUTIONS FOR GALVANIC BATTERIES.

Specification forming part of Letters Patent No. 215,899, dated May 27,1879; application filed March 3, 1879.

To all whom it may concern Be it known that I, CHARLES A. EHREN- BERG,of the city of Brooklyn,in the county of Kings and State of New York,have invented certain new and useful Improvements in Galvanic Batteriesand I do hereby declare that the following is a full, clear, and exactdescription of the invention, which will enable others skilled in theart to which it appertains to make and use the same.

My invention relates to the materials used for filling galvanicbatteries.

The construction of the ordinary galvanic battery is so well known thatit is unnecessary to describe it to understand the nature of myinvention, especially as the application of my improvement is notlimited to any particular form of construction. It matters not whetherin a battery there is used zinc and copper, zinc and carbon, or iron,platinum, 850., My invention is applicable to all forms.

My invention is simple, but is none the less important and effective inits results.

My improvement consists in the introduction of urine into the battery,in lieu of or in combination with the liquids ordinarily used forfilling batteries.

All the liquids in use for the purpose referred to have in theircomposition acid in such form and combination that the unavoidableresult of their use is the .oxidation and destruction of the metals withwhich they come in contact. Thereis also a constant decrease in theeffective power of the battery.

comfort, and injury and destruction ofproperty, and is a constant sourceof expense.

I have found by practical test that by the use of urine the oxidationand-destruction of the metals used are avoided, the renewal of partsobviated, and refilling rendered unnecessary except at long intervals.Further, the power of the battery, instead of decreasing with use andlapse of time, will rather tend to increase.

Another advantage possessed by my im provement is, that it admits ofgeneral application to the batteries in common use.

The expense attendil'lg the use of my improved battery is unappreciable,the many objectionable features of ordinary batteries are removed, andthe production of electricity, if I may use the phrase, is attainedcheaply and easily.

If necessary or desirable, the urine used may be clarified or purified.

If desired, urine may be used in combination with the liquids inordinary use for filling batteries; but I regard its use alone aspreferable.

I claim as my invention- The use of urine as an excitant in galvanicbatteries, substantially as described.

In testimony that I claim the foregoing as my own I affix'my signaturein presence of two witnesses.

'c. A. EHRENBERG.

IVitnesses:

Tnos. GAHAGAN, J OHN J. ALLEN.

